Crimping-machine for boots and shoes



(No Model.) 3' Sheets-Sheet 1. J. WJD. PIFIELD 8a W. H. HOLT.

'GRIMPING MACHINE FOR BOOTS AND SHOES. No. 329,033.

Patented Oct 27', 1885-. FI :1.

llrp/ar l'mr's l J ,I

My PETERS. Phclruthugnphcr. Washinglun, D.C.

(No Model.) 3 Sheets-Sheet 2..

J. W. D. FIFIELD & W. H. HOLT. URIMPING MACHINE FOR BOOTS AND SHOES. o.329,033. Patented Oct, 27, 188-5.

' N. PETERS. Fhula-Lilhogliphe Wmhin ton. D.C.

NITED STATES PATENT FFICEQ",

JOHN W. n. FIFIELD AND WILLIAM H. HOLT, OF NORTH BROOKFIELD,

MASSACHUSETTS. A r a CRl MPlNG-MACHINE FOR BOOTS AND SHOES.

SPESIFICATION forming part of Letters Patent No. 329,033, dated October27, 1885.

Application filed April 3, 1885. Serial No. 161 143. (No model.)

-To all whom it may concern:

which the following description, in connection with the accompanyingdrawings, is a specification, like letters on the drawings representinglike parts.

This invention has for its object to improve the machine described inUnited States Patent N 0. 304,517, heretofore granted to us, and

especially as to the construction and mode of operation of the dogswhich engage the corners and other parts of the vamp or upper beingcrimped. Herein we have provided de-' vices for positively actuating thesaid dogs at the proper time to thus insure their greater efficiency;and we have also improved the construction of the corner guide, whereby,instead of operating it by hand, it is actuated automatically.

Our invention 'consists, essentially, in a form-plate provided withslides or blocks, and an auxiliary jaw provided with cam-slots and armsto support the said jaw, the said auxiliary jaw having co-operating withit a main j aw provided with levers, the said levers actuating the legand foot dogs to grasp the upper or vamp between the dogs and the saidblocks or slides, to operate substantially as will be described; also,in a form-plate cut away and provided with a slide or block having apivoted catch to hold the slide or block in place, substantially as willbe described; also, in a form-plate provided with a block or slide, twoarms, two auxiliary jaws pivoted thereon and provided each with acam-slot, and two main jaws having attached levers and slides movedthereby, having mounted upon them corner-engaging dogs, to operatesubstantially as will be described; also, in auxiliary jaws providedwith notches or projections and with hooks, and the main jaw providedwith pivoted catches, combined with form-plates and pins or projectionsto release the said catches, and by pressure against them insure thedescent of the main jaw within the auxiliary jaw, Substantially as willbe described.

inafter pointed out, and specifically designated inthe claims at the endof this Specification.

Figure 1 in front elevation represents a machine embodying our presentimprovements. Fig. 2 is a partial vertical central section of Fig. l inthe line 00 0c, the arm carrying the crimping-jaw at the front of themachine being in section in the line or w, the main and auxiliary jawatfthe front of the machine being left in elevation, the parts outsidethe front jaw being also in elevation. Fig. 3 is a partial elevation ofthe right-hanol end of Fig. 1; Fig. 4., two views of the clamping-plateremoved; .Fig. 5, a partial cross-section of Fig. l in the lines 00' x00 :0 one jaw and its cal rying-arm being in section and the other inplan View; Fig. 6, an inner side View of the.

auxiliary jaw; Fig. 7, an inner side view the rear jaw placedin workingposition against the auxiliary jaw, the said figure showing thc dogs toengage the corners and the foot and leg of the vamp or upper, and theclampingplate, the main jaw by full and dot-ted lines being shown in twopositions, the full-line position being that when the jaws, having'engaged the upper on the form-plate, commence to crimp the boot orshoe. Fig. 8 is an inner side view of the main jaw alone; Fig. 9, aleft-' hand end view of Fig. 8; Fig. 10, a vletail of theleg-engagingdog; Fig. 11, the corner-engaging dog detached; Fig. 12, adetail showing the latch which holds the main jaw in its full-line ornormal position, Fig. 7; Fig. 13, a detail on a larger scale of one ofthe slideblocks and part of the form-plate.

The main frame-work A,in usual or suitable boxes, (not shown,) sustainsthe main shaft A and the shaft A with chain-wheels A A, over which arepassed the chains A A The chains A A have single and double links, andthe holders A for the form-plates A are secured to the single links byscrews or bolts, as at 2.

The form-plates, preferably of sheet-stee1, shaped substantially asshown, are attached at their ends to the form-holders A, and eachform-plate is provided with three recesses, in

These shafts are provided which are placed loosely the slides or blocks7 a a a composed each of two pieces (see Fig. 13) united by screws aeach of the said slides Other features of our invention will be hereorblocks having pivoted upon it near one edge a suitable weighted or otherpawl, a, which engages teeth out into the edge of the formplate next toI each slide or block, the said catches retaining the slides or blocksfrom moving back toward the instep part 30f the form-plate until afterthe latter has descended below the jaws, to be described, the saidslides or blocks, aside from the catches, being substantially the sameas shown in'the patent referred to. The form-plates are provided eachwith two actuating pins or projections, a a one at each end of theform-plate, and proj ecting from each side of'the same, the said pins orprojections in'the movement of the formplates striking the catches of,pivoted upon the main jaws B, as shown in Figs. 1,2, 7,8, and 9, thehooked ends of the said catches (see Fig.

"7, full lines) normally engaging notches a (shown by full lines, Fig.6) in the auxiliary jaw Bwhen the main jaw B is in its normal orelevated position, as' in full lines,'Fig. 7. Each auxiliary jaw B isbolted by bolts b upon an arm, G, pivoted at O, the said arms at theirouter ends,at each'side of the frame A,receiving through them bolts 0about which, after passing through the said arms, are placed springs 0the nuts 0" being thereafter applied, the springs permitting the armsand their attached j aws to separate to adapt themselves to thethickness of the leather on the form-plates.

The screws 19 are extended loosely through holes made in the arms 0 andthrough bosses located at the middle of the length of the saidner-dog,is provided with aprojectiomcflwhich,

arms, (see Fig. 5,) where the outer arm, 0,-is shown in plan,theinnerends of the said screws 1) b entering the auxiliary jaws B, thussupporting them so that they may rock as on vertical pivots, as in othermachines shown in patents granted to J. W. D. Fifield.

Each auxiliary jaw, one of whichis shown separately in Fig. 6, hasears'b bat its lower end, to support the main jaw B in its lowestposition, as in dotted lines, Fig. 7, and also cam-slots b b bf andbridges b 12 between openings made into the said auxiliary jaw,

foam-pits 12 b and the projection 12 cast integ'ral with the said jaw,has forming part of it a tubular guide, I).

The upper end of the auxiliary jaw 'B is grooved to receive the lowerserrated member of the corner-guide c,and' at its rear side eachauxiliary jaw has bolted to it by like bolts, 6,

'(seeFig. 5,) hooks 11 11 the latter extending outward about the rearsides of the catches a when the hooked ends of the latter are inengagem'ent with the notches a of the auxiliary jaws, as in Fig. 7, thecatches being normally descent, by acting upon the short arms of thecatches, compel the main jaws B to descend in unison with theform-plates; but as soon as the upper ends of the said catches passbelow the lower ends of the hooks b I) the catches turn on theirpivot-pins and the pins or projections a a pass below the catches,leaving the main jaw at rest.

Each main jaw B has pivoted upon it at 8 an elbow-lever, d, at 9 anelbow-lever, d, and at 10 an elbow-lever, 01*, each lever at its lowerend having a roller or other stud, the roller stud of lever d enteringthe cam-slot 12 that of leverd the cam-slot b, and that oflever al thecam-slot b.

The leverd at one end engages a notch in a slide, 6, placed in a groovein the back of the main jaw B,' and provided at its upper end with thecorrugated or serrated corner-dog e, the said slide 0 being movedlongitudinally by the elbow-lever d as the main jaw is caused todescend, the dog 6 during such movement being in contact with thematerial of the upper or vamp at its corner'12. (See Fig. 1, where thesaid corner is, however, shown as having passed below the jaws.) Theinner side of the corner 12, while the corner-dog e is in engagementwith it, is supported by the block a, and as the form-plate descends theblock a slides in it in the direction of the arrow thereon, Fig. 1, thesaid block and corner-dog grasping the leather at the corner 12,stretching the said corner.

The slide 0 at its rear side, opposite the corwhen the jaw B iselevated, as in full lines,

Fig. 7, enters the notch 14, and as the jaw B l is depressed, as stated,the projection e rides up out of the said depression upon the cambridgeI), and travels and rests on the said bridge so long as it is desired tostretch the.

said" corners, or while the other dogs to be described act, after whichthe said projection drops from the bridge into the depression 15. Thelever d has pivoted upon it at d a legstretching dog, d which enters ahole, d in the clamping-plate f. (Shown separately in i Fig. 4 and inplanin Fig. 7.) The leverd has pivoted upon it in like manner afoot-stretching dog, d, extended through a notch, d, in the saidclamping-plate.

The leg and foot of the upper at its edge each side of the corner and ateach side of the form-plate is supported opposite the leg and footstretching dogs d (i referred. to, by the slides or blocks a arespectively, and as the be moved diagonally away from the corner 12,

the said dogs co-operating with the blocks or slides a a from the insteppart of the form and in the direction of the movement of the said blocksor slides in the said form-plate.

The dogs (2" d at their rear sides have each a like projection, 20,atits side next the auxiliary jaw 13, the said projection, when the mainjaw is elevated, enteringrecesses l6, and as the jaw B descends the saidprojections pass out from the said recesses and ride upon the bridges b,where they remain as long as it is desired to stretch the upper orvamp,the projections 20 thereafter dropping into the recesses 17 17 Theclamping-plate f, onein each main jaw, has feet 18, (see Fig. 4,) thatrest upon a portion of the main jaw and between it and the auxiliaryjaw, as shown in Fig. 2, and at their rear sides, near their upper ends,each clamping-plate f has twolugs, 19, provided each with a roller, 22,each roller entering a pit, I)", (see Fig. 6,) in the auxiliary jaw, thesaid pits at their ends being inclined or camshaped.

While the main jaw is elevated, as in full lines, Figs. 2 and 7, therolls 22 act on the inner face of the auxiliary jaw just above the pitsI)", thus keeping the face of each clampingplate flush with the innerface of the main jaw; but as the main jaw is forced down, as described,the said rolls enter the pits I), thus permitting the clamping-plates torelieve the leather from pressure, while the dogs referred to and slidesor blocks act to stretch the leather; but just before the mainv jawreaches its lowest position the rolls 22 ride out of the pit b and theclamping-plates are again returned to their flush position.

The slot b receives through it the pin or stud 23, screwed into the backof the main jaw, and provided at its outer end at the back of theauxiliary jaw with a roll, 24, which latter rests on a lever, 25,pivoted at 26, and connected at its outer end (see Fig. 1) by a strap,27, with a weight, 28, the strap being extended over a pulley, 29, therebeing one such lever for each jaw.

As the main jaws are depressed as described, the roll 24, acting on thelever 25, depresses it and lifts the weight, and as the form-plate andthe vamp or upper thereon pass from between the lower end of the jawsthe said lever 25, acted upon by the weight, rises and lifts the mainjaw into its full-line or normal position.

The movable parts 0 of the corner-guides, serrated at their under sidesto co-operate with the serrated portions 0, attached to the auxiliaryjaw, have shanks 0 extended down through the guide-tubes 0 the lowerends of the said shanks being joined by a collar and pins 0* with alever, 0 secured to a rockshaft, 0", weighted at c, the said leverhaving a socket-piece slotted at its side walls for the reception of thepins 0.

The rock-shaft '0 has an arm, 0 connected with it and extended downward,the said arm having a roller or other stud, 28, which is acted upon bythe cam projections 29 30 of a disk, It, secured to the shaft A, thesaid cams in their rotation acting in succession on the roll 28, andmoving the lever 0 the rockshaft, and the lever 0 so that the latterraises the separate.

shanks of the movable members 0' of the corner-guides, thus lifting themto permit the operator to place the vamp or upper in position at the topof the jaws preparatory to the descent of the form-plate upon the upper,the said cams 29 30, as they pass the roll28, permitting the movablemember 0 of the corner guides to drop and hold the upper while theform-plate acts upon and forces the same through between the jaws, theform-plate gradually drawing the upper from between the corner-guides. 1

Each shank c'flnear its lower end, has a roller or other stud, 32, whichstands in a somewhat spiral slot, 33, the said stud and slot effecting apartial rotation of the shank and its attached part c as the shank israised, thus turning the part c aside, as in dotted lines, Fig. 5, thusuncovering the grooved parts a, to enable the operator to apply theupper.

The arms 0 O are permitted by the springs C on the bolts 0 to separateto accommodate thejaws to the thickness of the upper as the form-plateenters between the opposite jaws,

.and thereafter it is frequently desirable to lock the bolts 0", so thatthe jaws cannot further To do this we have slotted each bolt 0 and thearm (3, as shown in Figs. 3 and 5, and have placed in the said slots alockingbar, h, provided at each end with a wedge, the said bar havingconnected with it a handlever, h pivoted at h, the said lever beingmoved whenever it is desired to lock the said bolts and the arms andjaws in position.

We claim- 1. In a crimping-machine, a form-plate provided with slides orblocks a a, and the auxiliary jaw provided with cam-slots and arms tosupport the said jaw, the said auxiliary jaw having co-operating with itthe main jaw provided with levers, the said levers actuating the leg andfoot dogs to grasp the upper or vamp between the dogs and the saidblocks or slides, to operate substantially as described.

2. In a crimping-machine, a form-plate cut away and provided with aslide or block, a, the said block having a pivoted catch to hold theslide or block in place, substantially as described. 3. Acrimping-machine containing the following instrumentalities, viz: a formplate provided with a block or slide, a, two arms, 0, two auxiliary jawspivoted thereon and provided each with a ca1n-slot, b and two main jawshaving attached levers d, and the slides moved thereby, having mountedupon them the corner-engaging dogs, to operate substantially asdescribed.

4. In a crimping-machine, the auxiliary jaws provided with the pits I)",combined with the main jaws, and the clamping-plates provided with theprojections or rolls to enter the said pits and permit theclamping-plates to retire from their forward position flush with thefaces of the main jaws, substantially as de' scribed.

5. The an xiliary j awsprovided with notches -or projections, as at aand the hooks b b substantially as described.

6. The auxiliary jaw provided with the toothed plate a and the guide b,and the movable members c of the corner-guide, having a shank extendedinto the said guide, combined with the lever c and rock-shaft,andmeans,substantially as described, to operate it to lift the movablemember of the said corner-guide, substantially as described.

7. The auxiliary jaw provided with the toothed plate and the guide I),and the movable members c of the corner-guide, having a shank extendedinto the said guide, combined with the weighted lever to pull themovable member of the corner-guide down upon the fixed member 0, tooperate substantially as described.

8. Thejaw B and its attached fixed member 0 ofthe corner-guide, and theguide bflprovided with the irregular slot 33, combined with the movablemember 0 of the corner guide and its shank, provided with the pin 32, toenter the slot33 and turn the member 0 aside, sub stantially asdescribed.

9. The auxiliary jaw, slotted at b and the independentlymovable main jawprovided with the pin or stud, combined with the lever and the weightthereon, to raise the main jaw, substantially as described.

10. The auxiliary jaw provided-with depressions with a bridge between,and the main jaw and its pivoted levers, having pivoted dogs providedwith projections 20, to enter the said recesses and ride upon the saidbridges,

substantially as described.

11. In a crimping machine, two endless chains,-A A parallel each withthe other,two shafts, chain-wheels thereon to move the said chains inunison, and form-holders attachedto the said chains in pairs, andform-plates attached at each end to the said form-holders, leaving thelongitudinal centers of the said plates parallel with the said shafts,combined with two arms,O, and crimping-jaws mounted thereon and extendedacross the machine 'parallel with the shafts which drive the saidchains, the combination being and operating substantially as described.

In testimony whereof we have signed our names to this specification inthe presenceof two subscribing witnesses.

JOHN W. D. FIFIELD. WM. H. HOLT. Witnesses:

- O. D. STowE, R. N. CLAPP.

